Title:
【発明の名称】1β,7,8―トリヒドロキシビタミンD2若しくはD3またはそれらの誘導体、およびそれらの製造方法
Document Type and Number:
Japanese Patent JPH0667896
Kind Code:
B2
Abstract:
Novel compounds represented by formula (II) are disclosed. They can be easily converted into a fragment corresponding to ring A to be used in a process for binding a fragment corresponding to ring A to fragments corresponding to rings C and D by the oxidative cleavage of the C7-C8 bond according to a known method. The novel compounds of formula (II) can be obtained by allylic oxidation of the compound of formula (I) to directly introduce one oxygen-functional group into C1-position.
Inventors:
Hiroshi Tahara
Application Number:
JP5534288A
Publication Date:
August 31, 1994
Filing Date:
March 09, 1988
Export Citation:
Assignee:
Daido Hokusan Co., Ltd.
International Classes:
C07C67/00; C07C401/00; C07D317/72; C07F7/18; (IPC1-7): C07C401/00; C07D317/72
Domestic Patent References:
| JP63500033A | ||||
| JP60502203A |
Attorney, Agent or Firm:
Kenichi Morita
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